Work-clamp.



L. J. FAUBEL.

WORK CLAMP.

APPLICATION FILED AUG. 14, 1913. LNLGM. Patented June 3o, 1914.

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L. J. FAUBEL.

WORK CLAMP.

APPLICATION FILED AUG. 14, 1913. 1,101,624., Patented June 30, 1914.

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f f' @W UN STATES PATENT OFFICE.

LOUIS J. FAUBEL, OF OSSINING, NEW YORK.

WORK-CLAMP.

To all whom it may concern.'

Be it known that I, LOUIS J. F AUBEL, a citizen of the United States,residing at Ossining, in the county of Westchester, State of New York,have invented certain new and useful Improvements in Work- Clamps; and Ido hereby declare the following to be a full, clear, and eXactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to work holders designed especially for use inconnection with wood working machines of that general type known asvariety Shapers.

An object of the present invention is to provide a work holding clampthat will in- 4 clude top and bottom boards spaced apart Sufliciently tobear upon the top and bottom collars of the Shaper cutter head while thework is being operated upon by the knives of the cutter head.

A further object of the invention is to provide a novel handle forsecuring the top and bottom boards of the clamp to the work.

A further object is to provide a clamp of this type that will beextremely strong and durable and will be So constructed as to be noteasily accidentally displaced from applied position.

With the above objects in view the invention consists of certain noveldetails of construction and combination of parts hereinafter fullydescribed and claimed', it being understood that various modications maybe made in the minor details of construction within the Scope of theappended claims.

In the accompanying drawings illustrating this invention :-Figure 1 is afront elevation showing the application of a pair of my improved workholding clamps in operative position upon a variety Shaper. Fig. 2 is aplan view of` the parts shown in Fig. 1. Fig, 3 is a front elevation ofmy improved clamp. Fig. 4 is an Aend elevation of the clamp. Fig. 5 is avertical sectional View on the line 5-5 Fig. 8 showing the constructionof one of the handles. Fig. 6

Specification of Letters Patent.

Application filed August 14, 1913.

Patented June 30, 1914.

Serial No. 784,776.

is a similar view showing the handle stem depressed. to release thehandle from oper atlve position. Fig. 7 is a cross sectional view on theline 7-7 Fig. 3. Fig. 8 is a vertical sectional view through the handletaken in a plane at right angles to the View shown in Fig. 5.

Referring now to the drawings in which like characters of referencedesignate Simi; lar parts, 10 designates the table top, 11 the cutterhead spindles, 12 and 13 the upper and lower collars of thecutterf-heads, and 14 the blades of the cutter heads, these parts beingall of the usual and well known type employed in variety Shapers.

For holding the work, I provide a clamp including a top board 15, abotto-m board 16, and handles 17 which connect both boards and draw thesame tight upon the edges of the work, which latter in the presentinstance is shown as boards 18 the outer faces of which project beyondthe longitudinal edges of the top and bottom boards of the clamp so asto be operated upon by the cutter heads in the usual manner. The top andbottom boards of the clamp bear respectively upon the top and bottomcollars 12 and 13 of the cutter head whereby said top and bottom boardsof the clamp perform the function of gages.

In Fig. 1 there is shown two clamps embodying my improvements, the onlydierence being that the bottom board of one is disclosed as being ofgreater width than the top board thereof, whereby a bias cut is made bythe cutter head upon the work as the upper and lower boards of the clampare forced into engagement with the collars 12 and 13 respectively. Boththe top and bottorn boards of the clamp may be formed of any desiredshape whereby the work may be shaped as desired.

Each handle comprises a two-piece shell 19 the halves of which aresecured together by inter-fitting studs 20 as Shown best in Fig. 7 theShell carrying at the bottom hinge ears 21 which eccentrically receivegudgeons 22 of a tubular rod 23 which is removably secured to alongitudinal cleat 2f carried by the bottom board of the clamp, by meansof a screw 25 the head of which is secured in the cleat, and the shankoi' which is threaded into the lower end of the bore of the rod. The rodis enlarged at the lower' end to produce opposite shoulders 26 that lie{iush with the top face of the top board, and a washer 27 is disposed onthe rod and bears upon the top face of the top board and bears uponthese shoulders, this washer forming an abutment and wear plate againstwhich the eccentric edges of the ears carried by the handle bear with aresultant clamping of the top and bottom boards together.

For locking the handle in operative position a locking bolt 2S isslidably fitted in the upper end of the bore of the rod 23, the boltbeing normally urged upwardly by means of a helical spring 29 that isconfined in the bore of the rod against the bottom of the bolt by meansof a plug 8O that is threaded into the bore of the rod. The upper end ofthe bolt is beveled on the opposite sides as shown at 31 to produce camfaces the function of which will presently be explained.

Formed in the handle is an internal collar 32 having a central opening38 therein, into which opening the locking bolt springs upon the handlebeing rotated to upright position, whereby the handle is locked in suchposition until the bolt is depressed out of the opening 33. Upon thehandle being rocked upwardly to upright position, from either side ofthe bolt, the corresponding cam face of the bolt will ride upon thelower face of the collar 32 with a resultant camming downward of thebolt against the pressure of its controlling spring 29, the bolt beingreturned to normal position upon the handle assuming upright position,whereby the bolt enters the opening in the collar and locks the handlestationary.

For releasing the handle, a push rod 84: is slidably fitted in anopening 35 formed in an internal collar 36 disposed in the handle, thepush rod normally projecting into the upper end of the opening 33 formedin the collar 32, and being held in this position by means of a helicalspring 37 that is disposed on the push rod between the collars 32 and36, the spring bearing against the collar 32 and having one end passedthrough the push rod. The upper end of the push r'od projects above thetop of the handle and is equipped with a button 38 which forms means fordepressing the push rod and also contacts with the top of the handle andlimits depression of the push rod. Upon the push rod being depressed itstip engages with the tip of the locking bolt and pushes the locking boltout of the opening 33 in the collar 32 whereby the handle is releasedand may be rocked to horizontal position with a resultant loosening ofthe top and bottom boards of the clamp from the work.

Two or more handles constructed as above described may be employed inconnection with each top and bottom board whereby to securely clamp saidboards upon the work.

it will thus be seen that I have provided an extremely simple andeffective work holder for use in connection with wood working machinesof that general type4 known as variety Shapers, which work holder isformed of a few strong and durable parts that may be constructed at aminimum cost and will not easily get out of order.

lVhat is claimed, is

l. A work holder including clamp boards, a rod connected to one of saidboards and projecting through the other of said boards, a handle havinghinge ears eccentrically pivoted on the projecting end of said rod, saidhandle being adapted to be rocked to operative position in prolongationof said rod whereby said ears exert a pressureV on the last named boardwith a resultant drawing` of said boards together, interlocking meansbetween said handle and said rod for automatically locking said handlein operative position, and means carried by said handle for releasingsaid locking means.

2. A work holder including clamp boards, a tubular rod connected to oneof said boards and projecting through the other of said boards, a hollowhandle having hinge ears eccentrically pivoted on the projecting end ofsaid rod, a washer on said rod bearing against the last named board,said handle being adapted to be rocked to operative position intoprolongation of said rod with a resultant pressure of said ears on saidwasher whereby said boards are drawn toward each other, a spring pressedlocking pin carried in the bore of said tubular rod and adapted toproject into said handle and lock said handle in operative position, anda spring pressed push rod carried by said handle adapted to be urgedagainst said bolt to force the latter out of engagement with said handlewhereby to release said handle.

3. A work holder for use in connection with a variety shaping machinehaving upper and lower cutter head collars, said work holder includingclamp boards adapted to receive the work therebetween, a rod connectedto one of said boards and proj ecting through the other of said boards,a handle having hinge ears eccentrically pivotedon the projecting end ofsaid rod, said handle being adapted to be rocked to operative positionin prolongation of said rod and exert a pres'- sure on the adjacentboard with a resultant drawing of said boards together, said rod andsaid handle being so proportioned that when the handle is in operativeposition by said handle for releasing said locking said boards arespaced apart the same dismeans. 10 tance as said collars on saidshaping, machine In testimony whereof, I aflix my signawhereby saidboards function as a gage ture, in the presence of two witnesses.

'i when disposed edgewise against said collars, LOUIS J. FAUBEL.

interlocking means between said handle and Witnesses: said rod forautomatically locking said han- GAYLORD B. I-IUBBELL, dle in operativeposition, and means carried ISAAC LEGGETT.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner o1' Patents, Washington, D. C.

